Chemistry The percentage of Nitrogen in Air is 0.03 78.03 85.02 0.94 0.03 78.03 85.02 0.94 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which among the following stage is suitable indicator when solution of sodium carbonate is mixed with sulphuric acid ? Methylene blue Methyl red Phenolphthaline Methyl orange Methylene blue Methyl red Phenolphthaline Methyl orange ANSWER DOWNLOAD EXAMIANS APP
Chemistry The formula C6H5-CO-CH3 represents Acetic acid Acetone Phenyl acetate Acetophenone Acetic acid Acetone Phenyl acetate Acetophenone ANSWER DOWNLOAD EXAMIANS APP
Chemistry It is dangerous to leave the car engine running in a closed garage, because it may cause serious pollution due to poisoning by emission of SO2 CO Unburnt petrol CO2 SO2 CO Unburnt petrol CO2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Sodium vapour lamps glow with yellow colour. This is due to The low ionisation energy of sodium sublimation of sodium to emit yellow colour The emission of excess energy absorbed by sodium atoms, in the yellow region of the spectrum Its ability to absorb all other colours except yellow The low ionisation energy of sodium sublimation of sodium to emit yellow colour The emission of excess energy absorbed by sodium atoms, in the yellow region of the spectrum Its ability to absorb all other colours except yellow ANSWER DOWNLOAD EXAMIANS APP
Chemistry The common name for the compound having formal NaOH is Caustic potash Sodium hydroxide Soda ash Caustic soda Caustic potash Sodium hydroxide Soda ash Caustic soda ANSWER DOWNLOAD EXAMIANS APP
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